Now that it's getting close to Thanksgiving, we're running a contest to hear advice you've received that you're most thankful for! This can be any type of advice and the advice with the most reactions will win!
Hmm typically Newman projections are used for looking down a C-C bond, usually of a n-alkane. Cis/Trans designation is for alkenes or possibly cycloalkanes. You wouldn't ever have to designate Cis or Trans for a cycloalkane based on the Newman projections. Typically, the projections are just used to map relative stabilities of different conformations of the molecule based on steric and eclipsing interactions.
If you are good at PAT, then this should be simple. I mentally rotate the projection so the lowest priority is either in the back or the front. Then, assign the priorities and see if the substituents are rotating left or right. Flip the result if the lowest priority is in the back.
The carbon closest to the viewer is R. 1 is bonded to Br, so that takes priority 2 is bonded to 2 real carbons and 1 ghost carbon, taking priority away from 3 which is bonded to 2 carbons and 1 H.
The carbon away from the viewer is R. The first atom attached are C,C,C,H, so we must look at the atoms attached to them 1 is attached to Br, so that must take priority regardless of the double bond in 2 2 takes priority compared to 3 because it has double bond, therefore, replace with "ghost" atoms